pmb2313v1.2.fmN e v e r s t o p t h i n k i n g .
Prescaler Circui t 1.1 GHz PMB 2313T
Version 1.5
Wireless Infrastructure
Edition 2003-12-01
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Prescaler Circuit 1.1 GHz Draft Copy Revision History: 2003-12-01 Version 1.2
Previous Version: 1.1
20 Replacing the PMB 2312 by the PMB 2313 removed
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PMB 2313T Version 1.5
5 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Test Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10 Phase Noise Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
11 Measured Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
13 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
PMB 2313T Version 1.5
1 Overview
1.1 Functional Description/ Application
This IC is designed for use in mobile radio communication devices up to 1100 MHz.
Due to low power consumption and low phase noise generation, the PMB2313T is suitable for use in battery powered handheld systems, e.g. GSM, cordless telephones and cordless consumer products, as well as in basestations.
Low supply voltage down to 2.7V. It can be switched to a low-power standby mode. Internal current source at the emitter follower output.
No external resistor needed in typical applications.
The divide ratio is 1:64/65 or 1:128/129 depending on the external circuit configuration.
The IC is board level compatible to the PMB 2312 prescaler.
1.2 Circuit Description
The differential inputs of the IC may be connected either balanced or single ended. In the latter case the unused input must be RF-grounded with a capacitor (about 1.5 nF) with a low serial inductance.
Depending on the logic level at SW input the basic divide ratio of the ECL-stages is fixed to 1:64/65 or 1:128/129. The MOD input determines whether modulus 1:n or 1:n+1 (n=64 or 128 according to SW-level) is active.
The IC can be switched to a low-power standby mode (input STB).
The MOD input is TTL/CMOS compatible.
The emitter follower output is CMOS compatible according to the application circuit on page 11. The minimum logic swing is 0.8 Vpp.
Table 1 Function Table
Input pin Logic level Prescaler function SW HIGH = US-0.1 V to US
LOW = GND to 0.8 V or open 1:64/65 1:128/129
MOD HIGH = 2.0 V to US or open LOW = GND to 0.8 V
1:64/1:128 1:65/1:129
STB HIGH = US-0.1 V to US LOW = GND to 0.8 V
Divider Q=HIGH, STANDBY-mode
– Prescaler Circuit 1.1 GHz
PMB 2313T Version 1.5
6
7
8I1
US
SW
Q
I2
STB
MOD
GND
Pin 1 RF-input I1 Pin 2 supply voltage US Pin 3 divide ratio 1:64/65 - 1:128/129 control input (SW) Pin 4 output Q Pin 5 GND Pin 6 modulus 1:n/n+1 (n=64 or 128) control input (MOD) Pin 7 standby mode control input (STB) Pin 8 RF-input I2
PMB 2313T Version 1.5
3 Block Diagram
PMB 2313T Version 1.5
Parameter Symbol Limit Values Unit Remarks min. max.
Supply voltage US -0.3 6 V Input level (Pin 1; Pin 8)
UI 2 V US=0V
Voltage swing (Pin 1 to 8)
UI18 -2 2 V
USW, UMOD, USTB,
V US=2.7...5.5V
-IQ 5 mA
Junction temperature Tj 125 °C Storage temperature TS -65 125 °C Thermal resistance system-ambient
Rthsa 185 K/W
5 Operating Range
Parameter Symbol Limit Values Unit Remarks min. max.
Supply Voltage US 2.7 5.5 V Input frequency ƒ 50 1400 MHz Ambient temperature TA -40 85 °C
The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result.
ESD-integrity ( according MIL-STD 883D, Meth. 3015.7): 500V
Within the operational range the IC operates as described in the circuit description. The AC / DC characteristic limits are not guaranteed.
PMB 2313T Version 1.5
Data Sheet 9 Version 1.2, 2003-12-01
6 AC/DC Characteristics Supply voltage US=2.7 to 5.5V Ambient temperature TA = -20 to 85 °C (refered to the test circuit)
Parameter Symbol Limit Values Unit Test Condition min. typ. max.
Supply current
Supply current in standby-mode Input level dynamicrange (see diagram 2)
Output logic swing
SW voltage High SW voltage Low SW input current High SW input current Low MOD voltage High MOD voltage Low MOD input current High MOD input current Low
IS
IS
IS
ISTB
-ISWL
2.3 GND
µA
µA
inputs RF-grounded, US=2.7, TA = 25 °C, STB= US output open inputs RF-grounded, US=4.0, TA = 25 °C, STB= US output open inputs RF-grounded, US=5.5, TA = 25 °C, STB= US output open inputs RF-grounded, output open, STB = GND 100-1000MHz (sine wave) 100-1000MHz (sine wave) 1000-1100MHz (sine wave) 1000-1100MHz (sine wave) CL <= 12pF, RL=2k CL <= 8pF
SW=US
SW=GND
MOD=US
MOD=GND
STB voltage High STB voltage Low STB input current High STB input current Low Internal current source (see block diagram)
USTBH USTBL ISTBH
tset 29 ns
AC /DC characteristics involve the spread of values guaranteed within the specified suply voltage and ambient temperature range. Typical cha- racteristics are the median of the production.
Data Sheet 10 Version 1.2, 2003-12-01
PMB 2313T Version 1.5
50
Input sensitivity and output logic swing measurement
Signal generator (50)
6dB attenuator (50)
1
2
3
45
6
7
8
RL only needed for enhanced driving capability.
1n
8 Application Circuit
PMB 2304
PMB 2313T Version 1.5
9 Definition of Modulus Set-Up Time
Diagram 1
tset
I
MOD
Q
Changes of the mod-level made up to this time will still affect the Q-output
PMB 2313T Version 1.5
Data Sheet 13 Version 1.2, 2003-12-01
Diagram 2
Input Dynamic Range Test Configuration 1
-50
-40
-30
-20
-10
0 200 400 600 800 1000 1200 1400 1600 1800
Pi n
PMB 2313 Dynamic Range 4V Ratio 65 Test Configuration 1
Data Sheet 14 Version 1.2, 2003-12-01
PMB 2313T Version 1.5
Diagram 3
input
-50
-40
-30
-20
-10
0
10
20
0 200 400 600 800 1000 1200 1400 1600 1800
Pi n
PMB 2313 Dynamic Range 4V Ratio 65 Test Configuration 2
PMB 2313T Version 1.5
10 Phase Noise Measurement
Rhode & Schwarz FSBS Plotter
MAC Board PC
PMB 2306 register programming: N = 70, A = 20 (fout = 900.0 MHz) R = 50 (fref = 200 kHz) Status =11111100011111
+4.0V
IPD=2mA Port 1=high Dual Mode Preamplifier Select= MOD A AAnti-Bachlash Width=1.3ns Standby 1/2=active PD-polarity=positive Mode 1/2=internal charge pump Data Acquisition=synchronous
serial port
PMB 2313T Version 1.5
12 GSM Application Board
IC 1 PMB 2306
LD MFO2 MFO1 PD FI Q SW I1
I2STBMODGND
L1
C15R13
T3
T2
T1
R10
R11
R12
PMB 2304
Data Sheet 18 Version 1.2, 2003-12-01
PMB 2313T Version 1.5
List of Components
Item Quantity Reference Part
1 2 3 4 5 6 7 8 9 10 11 12
13
26 27 28
29 30
1 2 1 1 1 1 1 1 4 1 1 1
1
1 2 1
2 1
R7 R13, R14 R6 R8 R15 R10 RA R12 R3, R5, R9, R11 R4 R2 R1
L1
C11 C13 C8 C10, C12, C14 C15, C16, C30 C1, C2, C17 C9 C3 C5 C4 C7 C6 C19
D1 T2, T3 T1
X1, X2 RX
100 150 220 330 2.2k 3.3k 4.7k 6.8k 8.2k 18k 22k 39k
22nH
BBY51 BFR280 BFT92
SIMID 01
COG/1210 X7R/1210
IC1 or IC2 or
PMB 2304T P-DSO-14 PMB 2304T P-DSO-14 PMB 2313T P-DSO-8-1 PMB 2313T P-DSO-8-1
Q 67106-H9101 (TUBE) Q 67106-H9101 (T+R) Q 67006-A6116 (TUBE) Q 67006-A6116 (T+R)
PMB 2313T Version 1.5
13 Package Outlines
Plastic-Package, P-DSO-8, Dual-in-Line-Package, 20 A 8 DIN 41870 T16 (SMD)
5,2 max
4 -0,2
1, 75
m ax0,7
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